$(document).ready(function() {


    $('#yuyunav').nmcDropDown({
        show: {
            height: 'show',
            opacity: 'show'
        }
    });



});


(function(a) {
    a.fn.nmcDropDown = function(b) {
        var c = a.extend({},
        a.fn.nmcDropDown.defaults, b);
        return this.each(function() {
            menu = a(this);
            submenus = menu.children("li:has(" + c.submenu_selector + ")");
            if (c.fix_IE) {
                menu.css("z-index", 51).parents().each(function(d) {
                    if (a(this).css("position") == "relative") {
                        a(this).css("z-index", (d + 52))
                    }
                });
                submenus.children(c.submenu_selector).css("z-index", 50)
            }
            over = function() {
                a(this).addClass(c.active_class).children(c.submenu_selector).animate(c.show, c.show_speed);
                return false
            };
            out = function() {
                a(this).removeClass(c.active_class).children(c.submenu_selector).animate(c.hide, c.hide_speed);
                return false
            };
            if (c.trigger == "click") {
                submenus.toggle(over, out).children(c.submenu_selector).hide()
            } else {
                if (a().hoverIntent) {
                    submenus.hoverIntent({
                        interval: c.show_delay,
                        over: over,
                        timeout: c.hide_delay,
                        out: out
                    }).children(c.submenu_selector).hide()
                } else {
                    submenus.hover(over, out).children(c.submenu_selector).hide()
                }
            }
        })
    };
    a.fn.nmcDropDown.defaults = {
        trigger: "hover",
        active_class: "open",
        submenu_selector: "ul",
        show: {
            opacity: "show"
        },
        show_speed: 300,
        show_delay: 50,
        hide: {
            opacity: "hide"
        },
        hide_speed: 200,
        hide_delay: 100,
        fix_IE: true
    }
})(jQuery);


(function($) {
    $.fn.hoverIntent = function(f, g) {
        var cfg = {
            sensitivity: 7,
            interval: 100,
            timeout: 0
        };
        cfg = $.extend(cfg, g ? {
            over: f,
            out: g
        }: f);
        var cX, cY, pX, pY;
        var track = function(ev) {
            cX = ev.pageX;
            cY = ev.pageY;
        };
        var compare = function(ev, ob) {
            ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
            if ((Math.abs(pX - cX) + Math.abs(pY - cY)) < cfg.sensitivity) {
                $(ob).unbind("mousemove", track);
                ob.hoverIntent_s = 1;
                return cfg.over.apply(ob, [ev]);
            } else {
                pX = cX;
                pY = cY;
                ob.hoverIntent_t = setTimeout(function() {
                    compare(ev, ob);
                },
                cfg.interval);
            }
        };
        var delay = function(ev, ob) {
            ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
            ob.hoverIntent_s = 0;
            return cfg.out.apply(ob, [ev]);
        };
        var handleHover = function(e) {
            var p = (e.type == "mouseover" ? e.fromElement: e.toElement) || e.relatedTarget;
            while (p && p != this) {
                try {
                    p = p.parentNode;
                } catch(e) {
                    p = this;
                }
            }
            if (p == this) {
                return false;
            }
            var ev = jQuery.extend({},
            e);
            var ob = this;
            if (ob.hoverIntent_t) {
                ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
            }
            if (e.type == "mouseover") {
                pX = ev.pageX;
                pY = ev.pageY;
                $(ob).bind("mousemove", track);
                if (ob.hoverIntent_s != 1) {
                    ob.hoverIntent_t = setTimeout(function() {
                        compare(ev, ob);
                    },
                    cfg.interval);
                }
            } else {
                $(ob).unbind("mousemove", track);
                if (ob.hoverIntent_s == 1) {
                    ob.hoverIntent_t = setTimeout(function() {
                        delay(ev, ob);
                    },
                    cfg.timeout);
                }
            }
        };
        return this.mouseover(handleHover).mouseout(handleHover);
    };
})(jQuery);